public void SetTexture(int index, ShaderStage stage, ITexture texture)
{
int unit = _program.GetTextureUnit(stage, index);
if (unit != -1 && texture != null)
{
if (unit == 0)
{
_unit0Texture = ((TextureView)texture);
}
else
{
((TextureView)texture).Bind(unit);
}
}
}
public void AttachColor(int index, TextureView color)
{
FramebufferAttachment attachment = FramebufferAttachment.ColorAttachment0 + index;
if (HwCapabilities.Vendor == HwCapabilities.GpuVendor.Amd ||
HwCapabilities.Vendor == HwCapabilities.GpuVendor.Intel)
{
GL.FramebufferTexture(FramebufferTarget.Framebuffer, attachment, color?.GetIncompatibleFormatViewHandle() ?? 0, 0);
_colors[index] = color;
}
else
{
GL.FramebufferTexture(FramebufferTarget.Framebuffer, attachment, color?.Handle ?? 0, 0);
}
}
public void Copy(
TextureView src,
TextureView dst,
Extents2D srcRegion,
Extents2D dstRegion,
bool linearFilter)
{
int oldReadFramebufferHandle = GL.GetInteger(GetPName.ReadFramebufferBinding);
int oldDrawFramebufferHandle = GL.GetInteger(GetPName.DrawFramebufferBinding);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, GetSrcFramebufferLazy());
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, GetDstFramebufferLazy());
Attach(FramebufferTarget.ReadFramebuffer, src.Format, src.Handle);
Attach(FramebufferTarget.DrawFramebuffer, dst.Format, dst.Handle);
ClearBufferMask mask = GetMask(src.Format);
BlitFramebufferFilter filter = linearFilter
? BlitFramebufferFilter.Linear
: BlitFramebufferFilter.Nearest;
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
GL.Disable(EnableCap.RasterizerDiscard);
GL.Disable(IndexedEnableCap.ScissorTest, 0);
GL.BlitFramebuffer(
srcRegion.X1,
srcRegion.Y1,
srcRegion.X2,
srcRegion.Y2,
dstRegion.X1,
dstRegion.Y1,
dstRegion.X2,
dstRegion.Y2,
mask,
filter);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, oldReadFramebufferHandle);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, oldDrawFramebufferHandle);
((Pipeline)_renderer.Pipeline).RestoreScissor0Enable();
((Pipeline)_renderer.Pipeline).RestoreRasterizerDiscard();
}
public void Dispose()
{
if (_incompatibleFormatView != null)
{
_incompatibleFormatView.Dispose();
_incompatibleFormatView = null;
}
if (Handle != 0)
{
GL.DeleteTexture(Handle);
_parent.DecrementViewsCount();
Handle = 0;
}
}
public void Copy(
TextureView src,
TextureView dst,
Extents2D srcRegion,
Extents2D dstRegion,
bool linearFilter)
{
GL.Disable(EnableCap.FramebufferSrgb);
int oldReadFramebufferHandle = GL.GetInteger(GetPName.ReadFramebufferBinding);
int oldDrawFramebufferHandle = GL.GetInteger(GetPName.DrawFramebufferBinding);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, GetSrcFramebufferLazy());
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, GetDstFramebufferLazy());
Attach(FramebufferTarget.ReadFramebuffer, src.Format, src.Handle);
Attach(FramebufferTarget.DrawFramebuffer, dst.Format, dst.Handle);
ClearBufferMask mask = GetMask(src.Format);
BlitFramebufferFilter filter = linearFilter
? BlitFramebufferFilter.Linear
: BlitFramebufferFilter.Nearest;
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.DrawBuffer(DrawBufferMode.ColorAttachment0);
GL.BlitFramebuffer(
srcRegion.X1,
srcRegion.Y1,
srcRegion.X2,
srcRegion.Y2,
dstRegion.X1,
dstRegion.Y1,
dstRegion.X2,
dstRegion.Y2,
mask,
filter);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, oldReadFramebufferHandle);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, oldDrawFramebufferHandle);
GL.Enable(EnableCap.FramebufferSrgb);
}
public void CopyTo(ITexture destination, int firstLayer, int firstLevel)
{
TextureView destinationView = (TextureView)destination;
TextureCopyUnscaled.Copy(_info, destinationView._info, Handle, destinationView.Handle, 0, firstLayer, 0, firstLevel);
if (destinationView._emulatedViewParent != null)
{
TextureCopyUnscaled.Copy(
_info,
destinationView._emulatedViewParent._info,
Handle,
destinationView._emulatedViewParent.Handle,
0,
destinationView.FirstLayer,
0,
destinationView.FirstLevel);
}
}
public void Draw(
TextureView texture,
Sampler sampler,
float x0,
float y0,
float x1,
float y1,
float s0,
float t0,
float s1,
float t1)
{
EnsureInitialized();
GL.UseProgram(_programHandle);
texture.Bind(0);
sampler.Bind(0);
if (x0 > x1)
{
float temp = s0;
s0 = s1;
s1 = temp;
}
if (y0 > y1)
{
float temp = t0;
t0 = t1;
t1 = temp;
}
GL.Uniform1(_uniformSrcX0Location, s0);
GL.Uniform1(_uniformSrcY0Location, t0);
GL.Uniform1(_uniformSrcX1Location, s1);
GL.Uniform1(_uniformSrcY1Location, t1);
GL.ViewportIndexed(0, MathF.Min(x0, x1), MathF.Min(y0, y1), MathF.Abs(x1 - x0), MathF.Abs(y1 - y0));
GL.DrawArrays(PrimitiveType.TriangleStrip, 0, 4);
}
public int GetIncompatibleFormatViewHandle()
{
// AMD and Intel has a bug where the view format is always ignored,
// it uses the parent format instead.
// As workaround we create a new texture with the correct
// format, and then do a copy after the draw.
if (_parent.Info.Format != Format)
{
if (_incompatibleFormatView == null)
{
_incompatibleFormatView = (TextureView)_renderer.CreateTexture(_info);
}
TextureCopyUnscaled.Copy(_parent.Info, _incompatibleFormatView._info, _parent.Handle, _incompatibleFormatView.Handle, FirstLayer, 0, FirstLevel, 0);
return(_incompatibleFormatView.Handle);
}
return(Handle);
}
/// <summary>
/// Add a texture that is not being used anymore to the resource pool to be used later.
/// Both the texture's view and storage should be completely unused.
/// </summary>
/// <param name="view">The texture's view</param>
public void AddTexture(TextureView view)
{
lock (_lock)
{
List <DisposedTexture> list;
if (!_textures.TryGetValue(view.Info, out list))
{
list = new List <DisposedTexture>();
_textures.Add(view.Info, list);
}
list.Add(new DisposedTexture()
{
Info = view.Info,
View = view,
ScaleFactor = view.ScaleFactor,
RemainingFrames = DisposedLiveFrames
});
}
}
public void SetRenderTargets(ITexture[] colors, ITexture depthStencil)
{
EnsureFramebuffer();
for (int index = 0; index < colors.Length; index++)
{
TextureView color = (TextureView)colors[index];
_framebuffer.AttachColor(index, color);
}
TextureView depthStencilView = (TextureView)depthStencil;
_framebuffer.AttachDepthStencil(depthStencilView);
_framebuffer.SetDrawBuffers(colors.Length);
_hasDepthBuffer = depthStencil != null && depthStencilView.Format != Format.S8Uint;
UpdateDepthTest();
}
public void AttachDepthStencil(TextureView depthStencil)
{
// Detach the last depth/stencil buffer if there is any.
if (_lastDsAttachment != 0)
{
GL.FramebufferTexture(FramebufferTarget.Framebuffer, _lastDsAttachment, 0, 0);
}
if (depthStencil != null)
{
FramebufferAttachment attachment;
if (IsPackedDepthStencilFormat(depthStencil.Format))
{
attachment = FramebufferAttachment.DepthStencilAttachment;
}
else if (IsDepthOnlyFormat(depthStencil.Format))
{
attachment = FramebufferAttachment.DepthAttachment;
}
else
{
attachment = FramebufferAttachment.StencilAttachment;
}
GL.FramebufferTexture(
FramebufferTarget.Framebuffer,
attachment,
depthStencil.Handle,
0);
_lastDsAttachment = attachment;
}
else
{
_lastDsAttachment = 0;
}
}
private void CopyTextureToFrameBufferRGB(int drawFramebuffer, int readFramebuffer, TextureView view, ImageCrop crop)
{
(int oldDrawFramebufferHandle, int oldReadFramebufferHandle) = ((Pipeline)_renderer.Pipeline).GetBoundFramebuffers();
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, drawFramebuffer);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, readFramebuffer);
TextureView viewConverted = view.Format.IsBgr() ? _renderer.TextureCopy.BgraSwap(view) : view;
GL.FramebufferTexture(
FramebufferTarget.ReadFramebuffer,
FramebufferAttachment.ColorAttachment0,
viewConverted.Handle,
0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.Disable(EnableCap.RasterizerDiscard);
GL.Disable(IndexedEnableCap.ScissorTest, 0);
GL.Clear(ClearBufferMask.ColorBufferBit);
int srcX0, srcX1, srcY0, srcY1;
float scale = view.ScaleFactor;
if (crop.Left == 0 && crop.Right == 0)
{
srcX0 = 0;
srcX1 = (int)(view.Width / scale);
}
else
{
srcX0 = crop.Left;
srcX1 = crop.Right;
}
if (crop.Top == 0 && crop.Bottom == 0)
{
srcY0 = 0;
srcY1 = (int)(view.Height / scale);
}
else
{
srcY0 = crop.Top;
srcY1 = crop.Bottom;
}
if (scale != 1f)
{
srcX0 = (int)(srcX0 * scale);
srcY0 = (int)(srcY0 * scale);
srcX1 = (int)Math.Ceiling(srcX1 * scale);
srcY1 = (int)Math.Ceiling(srcY1 * scale);
}
float ratioX = crop.IsStretched ? 1.0f : MathF.Min(1.0f, _height * crop.AspectRatioX / (_width * crop.AspectRatioY));
float ratioY = crop.IsStretched ? 1.0f : MathF.Min(1.0f, _width * crop.AspectRatioY / (_height * crop.AspectRatioX));
int dstWidth = (int)(_width * ratioX);
int dstHeight = (int)(_height * ratioY);
int dstPaddingX = (_width - dstWidth) / 2;
int dstPaddingY = (_height - dstHeight) / 2;
int dstX0 = crop.FlipX ? _width - dstPaddingX : dstPaddingX;
int dstX1 = crop.FlipX ? dstPaddingX : _width - dstPaddingX;
int dstY0 = crop.FlipY ? dstPaddingY : _height - dstPaddingY;
int dstY1 = crop.FlipY ? _height - dstPaddingY : dstPaddingY;
if (ScreenCaptureRequested)
{
CaptureFrame(srcX0, srcY0, srcX1, srcY1, view.Format.IsBgr(), crop.FlipX, crop.FlipY);
ScreenCaptureRequested = false;
}
GL.BlitFramebuffer(
srcX0,
srcY0,
srcX1,
srcY1,
dstX0,
dstY0,
dstX1,
dstY1,
ClearBufferMask.ColorBufferBit,
BlitFramebufferFilter.Linear);
// Remove Alpha channel
GL.ColorMask(false, false, false, true);
GL.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
GL.Clear(ClearBufferMask.ColorBufferBit);
for (int i = 0; i < Constants.MaxRenderTargets; i++)
{
((Pipeline)_renderer.Pipeline).RestoreComponentMask(i);
}
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, oldReadFramebufferHandle);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, oldDrawFramebufferHandle);
((Pipeline)_renderer.Pipeline).RestoreScissor0Enable();
((Pipeline)_renderer.Pipeline).RestoreRasterizerDiscard();
if (viewConverted != view)
{
viewConverted.Dispose();
}
}
private void CopyTextureToFrameBufferRGB(int drawFramebuffer, int readFramebuffer, TextureView view, ImageCrop crop)
{
bool[] oldFramebufferColorWritemask = new bool[4];
(int oldDrawFramebufferHandle, int oldReadFramebufferHandle) = ((Pipeline)_renderer.Pipeline).GetBoundFramebuffers();
GL.GetBoolean(GetIndexedPName.ColorWritemask, drawFramebuffer, oldFramebufferColorWritemask);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, drawFramebuffer);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, readFramebuffer);
GL.FramebufferTexture(
FramebufferTarget.ReadFramebuffer,
FramebufferAttachment.ColorAttachment0,
view.Handle,
0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.Disable(EnableCap.RasterizerDiscard);
GL.Disable(IndexedEnableCap.ScissorTest, 0);
GL.Clear(ClearBufferMask.ColorBufferBit);
int srcX0, srcX1, srcY0, srcY1;
if (crop.Left == 0 && crop.Right == 0)
{
srcX0 = 0;
srcX1 = view.Width;
}
else
{
srcX0 = crop.Left;
srcX1 = crop.Right;
}
if (crop.Top == 0 && crop.Bottom == 0)
{
srcY0 = 0;
srcY1 = view.Height;
}
else
{
srcY0 = crop.Top;
srcY1 = crop.Bottom;
}
float ratioX = MathF.Min(1f, (_height * (float)NativeWidth) / ((float)NativeHeight * _width));
float ratioY = MathF.Min(1f, (_width * (float)NativeHeight) / ((float)NativeWidth * _height));
int dstWidth = (int)(_width * ratioX);
int dstHeight = (int)(_height * ratioY);
int dstPaddingX = (_width - dstWidth) / 2;
int dstPaddingY = (_height - dstHeight) / 2;
int dstX0 = crop.FlipX ? _width - dstPaddingX : dstPaddingX;
int dstX1 = crop.FlipX ? dstPaddingX : _width - dstPaddingX;
int dstY0 = crop.FlipY ? dstPaddingY : _height - dstPaddingY;
int dstY1 = crop.FlipY ? _height - dstPaddingY : dstPaddingY;
GL.BlitFramebuffer(
srcX0,
srcY0,
srcX1,
srcY1,
dstX0,
dstY0,
dstX1,
dstY1,
ClearBufferMask.ColorBufferBit,
BlitFramebufferFilter.Linear);
// Remove Alpha channel
GL.ColorMask(drawFramebuffer, false, false, false, true);
GL.ClearBuffer(ClearBuffer.Color, 0, new float[] { 0.0f, 0.0f, 0.0f, 1.0f });
GL.ColorMask(drawFramebuffer,
oldFramebufferColorWritemask[0],
oldFramebufferColorWritemask[1],
oldFramebufferColorWritemask[2],
oldFramebufferColorWritemask[3]);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, oldReadFramebufferHandle);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, oldDrawFramebufferHandle);
((Pipeline)_renderer.Pipeline).RestoreScissor0Enable();
((Pipeline)_renderer.Pipeline).RestoreRasterizerDiscard();
}
public static void Copy(TextureView src, TextureView dst, int dstLayer, int dstLevel)
{
int srcWidth = src.Width;
int srcHeight = src.Height;
int srcDepth = src.DepthOrLayers;
int srcLevels = src.Levels;
srcWidth = Math.Max(1, srcWidth >> dstLevel);
srcHeight = Math.Max(1, srcHeight >> dstLevel);
if (src.Target == Target.Texture3D)
{
srcDepth = Math.Max(1, srcDepth >> dstLevel);
}
int dstWidth = dst.Width;
int dstHeight = dst.Height;
int dstDepth = dst.DepthOrLayers;
int dstLevels = dst.Levels;
// When copying from a compressed to a non-compressed format,
// the non-compressed texture will have the size of the texture
// in blocks (not in texels), so we must adjust that size to
// match the size in texels of the compressed texture.
if (!src.IsCompressed && dst.IsCompressed)
{
dstWidth = BitUtils.DivRoundUp(dstWidth, dst.BlockWidth);
dstHeight = BitUtils.DivRoundUp(dstHeight, dst.BlockHeight);
}
else if (src.IsCompressed && !dst.IsCompressed)
{
dstWidth *= dst.BlockWidth;
dstHeight *= dst.BlockHeight;
}
int width = Math.Min(srcWidth, dstWidth);
int height = Math.Min(srcHeight, dstHeight);
int depth = Math.Min(srcDepth, dstDepth);
int levels = Math.Min(srcLevels, dstLevels);
for (int level = 0; level < levels; level++)
{
// Stop copy if we are already out of the levels range.
if (level >= src.Levels || dstLevel + level >= dst.Levels)
{
break;
}
GL.CopyImageSubData(
src.Handle,
src.Target.ConvertToImageTarget(),
level,
0,
0,
0,
dst.Handle,
dst.Target.ConvertToImageTarget(),
dstLevel + level,
0,
0,
dstLayer,
width,
height,
depth);
width = Math.Max(1, width >> 1);
height = Math.Max(1, height >> 1);
if (src.Target == Target.Texture3D)
{
depth = Math.Max(1, depth >> 1);
}
}
}
private void CopyTextureToFrameBufferRGB(int drawFramebuffer, int readFramebuffer, TextureView view, ImageCrop crop, Action <object> swapBuffersCallback)
{
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, drawFramebuffer);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, readFramebuffer);
GL.FramebufferTexture2D(FramebufferTarget.DrawFramebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2D, _stagingTextures[_currentTexture], 0);
TextureView viewConverted = view.Format.IsBgr() ? _renderer.TextureCopy.BgraSwap(view) : view;
GL.FramebufferTexture(
FramebufferTarget.ReadFramebuffer,
FramebufferAttachment.ColorAttachment0,
viewConverted.Handle,
0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.Disable(EnableCap.RasterizerDiscard);
GL.Disable(IndexedEnableCap.ScissorTest, 0);
GL.Clear(ClearBufferMask.ColorBufferBit);
int srcX0, srcX1, srcY0, srcY1;
float scale = view.ScaleFactor;
if (crop.Left == 0 && crop.Right == 0)
{
srcX0 = 0;
srcX1 = (int)(view.Width / scale);
}
else
{
srcX0 = crop.Left;
srcX1 = crop.Right;
}
if (crop.Top == 0 && crop.Bottom == 0)
{
srcY0 = 0;
srcY1 = (int)(view.Height / scale);
}
else
{
srcY0 = crop.Top;
srcY1 = crop.Bottom;
}
if (scale != 1f)
{
srcX0 = (int)(srcX0 * scale);
srcY0 = (int)(srcY0 * scale);
srcX1 = (int)Math.Ceiling(srcX1 * scale);
srcY1 = (int)Math.Ceiling(srcY1 * scale);
}
float ratioX = crop.IsStretched ? 1.0f : MathF.Min(1.0f, _height * crop.AspectRatioX / (_width * crop.AspectRatioY));
float ratioY = crop.IsStretched ? 1.0f : MathF.Min(1.0f, _width * crop.AspectRatioY / (_height * crop.AspectRatioX));
int dstWidth = (int)(_width * ratioX);
int dstHeight = (int)(_height * ratioY);
int dstPaddingX = (_width - dstWidth) / 2;
int dstPaddingY = (_height - dstHeight) / 2;
int dstX0 = crop.FlipX ? _width - dstPaddingX : dstPaddingX;
int dstX1 = crop.FlipX ? dstPaddingX : _width - dstPaddingX;
int dstY0 = crop.FlipY ? dstPaddingY : _height - dstPaddingY;
int dstY1 = crop.FlipY ? _height - dstPaddingY : dstPaddingY;
if (ScreenCaptureRequested)
{
CaptureFrame(srcX0, srcY0, srcX1, srcY1, view.Format.IsBgr(), crop.FlipX, crop.FlipY);
ScreenCaptureRequested = false;
}
GL.BlitFramebuffer(
srcX0,
srcY0,
srcX1,
srcY1,
dstX0,
dstY0,
dstX1,
dstY1,
ClearBufferMask.ColorBufferBit,
BlitFramebufferFilter.Linear);
// Remove Alpha channel
GL.ColorMask(false, false, false, true);
GL.ClearColor(0.0f, 0.0f, 0.0f, 1.0f);
GL.Clear(ClearBufferMask.ColorBufferBit);
for (int i = 0; i < Constants.MaxRenderTargets; i++)
{
((Pipeline)_renderer.Pipeline).RestoreComponentMask(i);
}
// Set clip control, viewport and the framebuffer to the output to placate overlays and OBS capture.
GL.ClipControl(ClipOrigin.LowerLeft, ClipDepthMode.NegativeOneToOne);
GL.Viewport(0, 0, _width, _height);
GL.BindFramebuffer(FramebufferTarget.Framebuffer, drawFramebuffer);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, _stagingFrameBuffer);
swapBuffersCallback((object)_stagingTextures[_currentTexture]);
_currentTexture = ++_currentTexture % _stagingTextures.Length;
((Pipeline)_renderer.Pipeline).RestoreClipControl();
((Pipeline)_renderer.Pipeline).RestoreScissor0Enable();
((Pipeline)_renderer.Pipeline).RestoreRasterizerDiscard();
((Pipeline)_renderer.Pipeline).RestoreViewport0();
if (viewConverted != view)
{
viewConverted.Dispose();
}
}
public void Present(ITexture texture, ImageCrop crop)
{
TextureView view = (TextureView)texture;
GL.Disable(EnableCap.FramebufferSrgb);
int oldReadFramebufferHandle = GL.GetInteger(GetPName.ReadFramebufferBinding);
int oldDrawFramebufferHandle = GL.GetInteger(GetPName.DrawFramebufferBinding);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, 0);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, GetCopyFramebufferHandleLazy());
GL.FramebufferTexture(
FramebufferTarget.ReadFramebuffer,
FramebufferAttachment.ColorAttachment0,
view.Handle,
0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
GL.Clear(ClearBufferMask.ColorBufferBit);
int srcX0, srcX1, srcY0, srcY1;
if (crop.Left == 0 && crop.Right == 0)
{
srcX0 = 0;
srcX1 = view.Width;
}
else
{
srcX0 = crop.Left;
srcX1 = crop.Right;
}
if (crop.Top == 0 && crop.Bottom == 0)
{
srcY0 = 0;
srcY1 = view.Height;
}
else
{
srcY0 = crop.Top;
srcY1 = crop.Bottom;
}
float ratioX = MathF.Min(1f, (_height * (float)NativeWidth) / ((float)NativeHeight * _width));
float ratioY = MathF.Min(1f, (_width * (float)NativeHeight) / ((float)NativeWidth * _height));
int dstWidth = (int)(_width * ratioX);
int dstHeight = (int)(_height * ratioY);
int dstPaddingX = (_width - dstWidth) / 2;
int dstPaddingY = (_height - dstHeight) / 2;
int dstX0 = crop.FlipX ? _width - dstPaddingX : dstPaddingX;
int dstX1 = crop.FlipX ? dstPaddingX : _width - dstPaddingX;
int dstY0 = crop.FlipY ? dstPaddingY : _height - dstPaddingY;
int dstY1 = crop.FlipY ? _height - dstPaddingY : dstPaddingY;
GL.BlitFramebuffer(
srcX0,
srcY0,
srcX1,
srcY1,
dstX0,
dstY0,
dstX1,
dstY1,
ClearBufferMask.ColorBufferBit,
BlitFramebufferFilter.Linear);
GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, oldReadFramebufferHandle);
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, oldDrawFramebufferHandle);
GL.Enable(EnableCap.FramebufferSrgb);
}